This idea sounds familiar. Isn't this basically "Value-added Modeling", which looks at how much teacher contribute to individual differences in increases in stu

This idea sounds familiar. Isn't this basically "Value-added Modeling", which looks at how much teacher contribute to individual differences in increases in student test scores? [1] Has this not been applied at the school level!? https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=value+added+modeling&btnG= https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=valu...